LabVIEW

WOW!

Thank you Roy!

Ben

I received a couple of questions concerning this post, so a bit more information to clear things up.

• LabVIEW's Logic
  LabVIEW's default thread creation logic is to create the max of (number of cores, 4). The bug we had is that we inadvertently limited this to four (no humorous comments please :)).
  
  
• What does the utility do?
  The utility writes some settings to your ini file if different than default. When you run the utility, it displays the number of processors you have in a field at the top. It displays the number of threads being used for each priority in a section below. For a machine with 1-4 cores, the default thread count will be four. For a machine with 8 cores, the default thread count "should" be 8 (and, as of LabVIEW 8.5, it is).

Roy

Hi,

I would like to know what happens when you build your application on a PC that has, for example, a dual core CPU and then run it on a 8-core based system that only has the labview run-time. Will it readjust if you include the threadconfig.vi in your application?

Thank you,

 Jean-Philippe

The bug was fixed in 8.5, so if running with that version or later, all is well; LabVIEW will automatically create one thread/core and be positioned to fully utilize the cores, if needed. It does this for the machine it is running on, regardless of where the VIs were developed and last saved.

For pre-8.5 applications, you don't need to include threadconfig.vi in your application, you just need to ensure the appropriate ini settings are added to the application's ini file. You can get the ini settings by running the VI, save settings, then look for the ESys.* settings in your LabVIEW.ini file.

Roy

Ben wrote:

Coal is not evil!
Fracking is not evil!

Kevin:

Back in the day they said smoking was healthy.

Actually good for you.  Helps clears the lungs.